/* 51吃瓜 - 全站样式 (纯静态, 无依赖) */
:root{
  --red:#e1121f;
  --red-dark:#b00e18;
  --orange:#ff6a00;
  --text:#22262b;
  --text-2:#5a6169;
  --border:#e6e8eb;
  --bg:#f5f6f8;
  --card:#fff;
  --radius:8px;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 6px 18px rgba(0,0,0,.04);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  font-size:15px;
}
a{color:inherit;text-decoration:none}
a:hover{color:var(--red)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 16px}

.topbar{background:#1b1f24;color:#9aa1a9;font-size:12px;line-height:30px}
.topbar .container{display:flex;justify-content:space-between}
.topbar a{color:#c8cdd2}
.topbar a:hover{color:#fff}

.header{background:var(--card);border-bottom:1px solid var(--border)}
.header .inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-size:26px;font-weight:800;letter-spacing:-.5px;color:var(--red)}
.logo .mark{background:linear-gradient(135deg,var(--red),var(--orange));color:#fff;width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:900}
.logo .sub{font-size:12px;font-weight:500;color:var(--text-2);letter-spacing:0;line-height:1.3}
.nav{display:flex;flex-wrap:wrap;gap:2px}
.nav a{padding:8px 14px;border-radius:6px;font-size:15px;font-weight:500;color:var(--text)}
.nav a:hover{background:#fdeaea;color:var(--red)}
.nav a.active{background:var(--red);color:#fff}

.search{display:flex;border:1px solid var(--border);border-radius:20px;overflow:hidden;background:#fff}
.search input{border:0;padding:7px 14px;width:150px;outline:none;font-size:13px;background:transparent}
.search button{background:var(--red);color:#fff;border:0;padding:7px 16px;cursor:pointer;font-size:13px}

main{padding:20px 0 40px}
.layout{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}

.hero{display:grid;grid-template-columns:1fr 320px;gap:20px;margin-bottom:20px}
.hero-main{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.hero-main .thumb{aspect-ratio:16/9;background:linear-gradient(135deg,#3a1d1d,#7a2a2a);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.85);font-size:40px}
.hero-main .body{padding:18px 20px 22px}
.hero-main h2{font-size:24px;line-height:1.4;margin-bottom:8px}
.hero-main p{color:var(--text-2);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.hotlist{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px}
.hotlist h2{font-size:16px;padding-bottom:10px;border-bottom:2px solid var(--red);margin-bottom:6px}
.hotlist ol{counter-reset:h}
.hotlist li{counter-increment:h;border-bottom:1px dashed var(--border)}
.hotlist li:last-child{border-bottom:0}
.hotlist a{display:flex;gap:10px;align-items:center;padding:9px 0;font-size:14px}
.hotlist a::before{
  content:counter(h);flex:0 0 20px;height:20px;border-radius:4px;background:#eef0f3;color:#8b929b;
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700
}
.hotlist li:nth-child(-n+3) a::before{background:var(--red);color:#fff}
.hotlist .txt{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

.sec-hd{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--red)}
.sec-hd h2{font-size:19px;font-weight:800}
.sec-hd h2 em{font-style:normal;color:var(--red)}
.sec-hd .more{font-size:13px;color:var(--text-2)}

.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.grid.g3{grid-template-columns:repeat(3,1fr)}
.item{display:flex;gap:12px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:12px;transition:.2s}
.item:hover{box-shadow:0 6px 20px rgba(225,18,31,.10);transform:translateY(-2px);border-color:#f5c6c9}
.item .thumb{flex:0 0 96px;height:68px;border-radius:6px;background:linear-gradient(135deg,#2f3540,#57606f);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.8);font-size:22px}
.item .txt h3{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.item .meta{margin-top:6px;font-size:12px;color:var(--text-2);display:flex;gap:10px}

.side .card{margin-bottom:16px}
.side h2{font-size:16px;padding:14px 16px 0}
.side ul{padding:6px 16px 16px}
.side li a{display:block;padding:8px 0;border-bottom:1px dashed var(--border);font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side li:last-child a{border-bottom:0}
.side .tags{padding:14px 16px 18px}
.side .tags a{display:inline-block;margin:0 6px 8px 0;padding:4px 10px;background:#f2f3f5;border-radius:14px;font-size:12px;color:var(--text-2)}
.side .tags a:hover{background:var(--red);color:#fff}

.crumb{font-size:13px;color:var(--text-2);padding:6px 0 14px}
.crumb a{color:var(--text-2)}
.crumb span{margin:0 6px;color:#c3c8ce}
.article h1{font-size:30px;line-height:1.4;margin-bottom:12px}
.article .info{color:var(--text-2);font-size:13px;padding-bottom:16px;border-bottom:1px solid var(--border);margin-bottom:20px;display:flex;gap:16px;flex-wrap:wrap}
.article .cover{width:100%;aspect-ratio:16/9;border-radius:var(--radius);background:linear-gradient(135deg,#3a1d1d,#7a2a2a);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.8);font-size:44px;margin-bottom:22px}
.article .body p{margin-bottom:18px;font-size:16px;line-height:2;text-indent:2em;color:#2c3138}
.article .body h3{margin:26px 0 12px;font-size:19px;padding-left:11px;border-left:4px solid var(--red)}
.article .body ul{margin:0 0 18px 2em;list-style:disc}
.article .body li{margin-bottom:8px;line-height:1.9}
.article .body blockquote{margin:20px 0;padding:14px 16px;background:#fff8f8;border-left:4px solid var(--red);color:var(--text-2);font-size:15px;border-radius:0 6px 6px 0}
.article .tip{background:#f7f8fa;border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;margin:24px 0}
.article .tip strong{display:block;margin-bottom:6px;color:var(--red)}
.article .foot-tags{padding-top:18px;border-top:1px solid var(--border);margin-top:8px}

.rel{margin-top:30px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}

.page-head{margin-bottom:18px}
.page-head h1{font-size:26px;margin-bottom:6px}
.page-head p{color:var(--text-2);font-size:14px}
.list{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}
.list:last-child{border-bottom:0}
.list .thumb{flex:0 0 200px;aspect-ratio:16/10;border-radius:6px;background:linear-gradient(135deg,#2f3540,#57606f);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.8);font-size:30px}
.list h3{font-size:18px;margin-bottom:8px}
.list p{color:var(--text-2);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list .meta{margin-top:8px;font-size:12px;color:var(--text-2);display:flex;gap:14px}

.pager{display:flex;justify-content:center;gap:8px;margin-top:26px}
.pager a,.pager span{padding:7px 14px;background:#fff;border:1px solid var(--border);border-radius:6px;font-size:14px;color:var(--text-2)}
.pager .cur{background:var(--red);color:#fff;border-color:var(--red)}

.seo-text{margin-top:20px}
.seo-text h2{font-size:17px;margin-bottom:12px}
.seo-text p{font-size:14px;color:var(--text-2);line-height:1.95;margin-bottom:12px}
.seo-text h3{font-size:15px;margin:16px 0 8px}

.foot-links{background:#1b1f24;color:#8b929b;font-size:13px;padding:26px 0}
.foot-links h4{color:#fff;font-size:14px;margin-bottom:10px}
.foot-links .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
.foot-links li{margin-bottom:6px}
.foot-links a{color:#8b929b}
.foot-links a:hover{color:#fff}
.copyright{text-align:center;padding:16px;font-size:12px;color:#8b929b;background:#14171b}

@media (max-width:980px){
  .layout,.hero{grid-template-columns:1fr}
  .side{display:none}
  .grid,.grid.g3{grid-template-columns:repeat(2,1fr)}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  body{font-size:14px}
  .header .inner{padding:12px 0}
  .logo{font-size:21px}
  .logo .mark{width:34px;height:34px;font-size:17px}
  .logo .sub{display:none}
  .nav{width:100%;overflow-x:auto;flex-wrap:nowrap}
  .nav a{white-space:nowrap;padding:7px 11px;font-size:14px}
  .search{display:none}
  .topbar .container span:first-child{display:none}
  .topbar .container{justify-content:center}
  .grid,.grid.g3,.rel-grid{grid-template-columns:1fr}
  .list{flex-direction:column;gap:10px}
  .list .thumb{flex:none;width:100%;aspect-ratio:16/9}
  .article h1{font-size:22px}
  .hero-main h2{font-size:19px}
  .article .body p{font-size:15px;line-height:1.95}
  .foot-links .cols{grid-template-columns:1fr 1fr}
}